KEYENCE KV-AD40G High-precision A/D Conversion Unit, 4 Analog Input Channels

Type

High-precision A/D conversion unit

Analogue input point

4 points (differential input)

Analogue input range (resolution)

Voltage

-10 to 10 V (0.33 mV 1/60,000)
0 to 10 V (0.33 mV 1/30,000)
0 to 5 V (0.17 mV 1/30,000)
1 to 5 V (0.17 mV 1/24,000)

Input current

0 to 20 mA (0.67 µA 1/30,000)
4 to 20 mA (0.67 µA 1/24,000)

Input resistance

Voltage: 5 MΩ, Current: 250 Ω

Conversion speed

80 µs/2 ch, 160 µs/4 ch (the quickest 50 µs/2 ch, 100 µs/4 ch when data buffer function is used)

Conversion precision

25 °C

Voltage: ±0.05 % of F.S., Current: ±0.05 % of F.S.

0 to 50 °C

Voltage: ±0.1 % of F.S., Current: ±0.1 % of F.S.

Insulation mode

Unit - Between CPUs: Photocoupler insulation,
between CH_A (0 and 1) and CH_B (0 and 1): Photocoupler insulation^*1

Absolute max. input

Voltage: ±15 V, Current: 30 mA

External trigger input

Number of input points: 1, Input signal: NPN open collector, no-voltage contact signal
minimum ON voltage: 1 V and maximum OFF current : 0.1 mA

Data buffering function

Data buffering period: 50 µs to 3 s, buffering data quantity: maximum 10000 words/ch
Synchronism: CH_A0 - CH_B0 and CH_A1 - CH_B1 have data synchronism

Special functions

Scaling, average processing (specification of the number of times, time specification, moving average, primary delay filter),
data offset, zero shift, zero clip, peak/valley value locking, comparator, wire breaking detection, data buffering, external trigger

Internal current consumption

220 mA or less

Weight

Approx. 190 g

^*1 Not insulated between CH_A0 and CH_A1 or between CH_B0 and CH_B1